Lock for locomotive shaker bars



R. C. HYDE.

LOOK FOR LOCOMOTIVE SHAKER BARS APPLICATION FILED OCT. 14, 1920. 1,412,181.

Patented Apr. 11,1922. 0

ROBERT o;H DE-yonra s n-olives, IOWA;

'LOCK ron'noooiuorrvn SHAKER BARS.

' To all whom it may concern:

Be itknown that 1, ROBERT C. Hrn'n, a citizen of the United States of America, and

resident of Des Moines, Polk County, Iowa,

have invented a new and useiul'Lock for L0- comotive Shaker Bars, 0t whichithe following is a specification.

The object of this invention is 'toprovide means for locking or latching together a handle and ashaker bar temporarily for manual use in oscillatingsaidbar.

A further object o tjthis inventionis to provide me'ans for preventing accidental removalof a handle'relative to a shakerbarf in A iurthel object o fithis invention isto' provide means for manual release of a handle from a shaker bar. I j j My invention consists in the construction, arrangement and combination of elements hereinafter set forth, pointed out in my claims and illustrated by the accompanying drawing, in which Figure 1 is a front elevation and Figure 2 a side elevation, partly in section, illustrating the construction and application of my improvements, a part of the handle being removed to economize space. Figure 3 is a vertical section illustrating certain parts at one step in the operation of connecting or disconnecting them, dotted lines showing a position assumed by one of the parts when other elements are disconnected.

In the construction of the device as shown the numeral 10 designates a shaker bar adapted to be mounted for oscillation on a pivot 11 and also adaptedto be connected by a rod 12 to grate bars or other devices to be agitated (not shown). The shaker bar 10 is formed with anotch 13in its upper end and said bar preferably is formed tapering above the pivot 11. A handle 14 is formed with a tapering socket 15 lying wholly in a plane at one side ofthe body of the handle,

and said socket is adapted to be placed on, and removed from the tapering upper end portion ofthe shaker bar 10. The socket 15 is fitted to the shaker bar so that said leaf may be oscillated conjunctively with any oscillation of the handle manually. A trigger 16 is mounted loosely in'and is adapted to V Specification of Letters Patent. Pafignted Apr; 11,1922; Application filed October 14, 1920'. Serial 1 rd. nasao.

decentered or eccentric mounting of the-trig- 7 gear jin'the bar providesfor'automatic engagement of the trigger with said shoulder. A lug 19 is formed on'the handle le'above the shoulder 18 and'serves to limit movement of the trigger in onefdirection. The outer walliofthe socketl'o is formedwith a notch 20 having an inclined upper wall 21. .lVlien the parts are disconnected the trigger as sumes, by gravity, I the position shown bv,

dotted lines-in Figure 8. The handleglet is applied manually by "downward movement of the socket 15 over the notched end of the shaker: bar 10.v such movement, the lower end oi the handle, adjacent the socket, engages the-shorter arm of the triggerlG and rotates sai d trigger (against gravity') into the position sh-o-wn'fsubstantially in Figures 1 and 2, the longer arm of the trigger p'assing through the notch 20. When the socket has passed to its seat on, the shaker arm, the

shoulder 18-has passed beyond the adjacent edge of the trigger and said trigger may move slightly so as to engage said, edge and shoulder exactly as shown in Figures 1 and f 2-. In such positions of the parts, the trigv ger locks the handle and socket to the shaker armand the handle may safely beoscillated manually for agitation of the grate bars or connected parts. The trigger may be released manually from the handle to permit the handle'to be removed from'the shaker bar. i Y i d When .theparts are assembled as shown the fireman of a locomotive equipped there-- with may operate the handle without danger of being injured or thrown from the cab by, accidental removalof the handle from the baigand accidental removal and loss of the handle also is prevented. I An upstanding lug 22 preferably is 7 formed at the front side of the lower end of the notch 13, and the forward side of the lower end of thetrigger 16 is correspondingly notched or cutaway, thus limiting move-f ment of said trigger through an arc in one direction. Thisinsures that the trigger will always fall to the position indicated by dotted lines in Figure 3 when the handle is removed, rather than in the opposite direction, so that the long arm of said trigger may swing through the notch when the handle is applied to the shaker bar.

If desired additional shoulders 18 may be provided in vertically spaced relation, so that the handle socket 15 may at all times fit snugly to the shaker bar and be engaged by the trigger 16, regardless of any wear which may take place in the parts.

It is to be understood that this look may be used on shaker bars for grates other than those forming parts of locomotives, and that its specific application herein is for purposes oi illustration of various uses to which the invention may be put.

I claim as my invention-- 1. In a lock for shaker bars, the combination of a shaker bar, a trigger pivoted thereon, and a handle formed with a socket, which handle is adapted to engage said trigger and move the same rotatably as the handle is ap plied to the shaker bar, said handle also being adapted to be engaged and retained by said trigger.

2. In a lock for shaker bars, the combination of a shaker bar, a trigger pivoted thereon, and a handle "formed with a socket, which handle is adapted to engage said trigger and move the same rotatably as the handle is applied to the shaker bar, said handle also being adapted to beengaged and retained by said trigger, said trigger being pivoted in decentered relation whereby it is impelled to move to locking engagement withsaid handle by force of gravity.

8. In a lock for locomotive shaker bars, the combination of a shaker bar formed with a notch, a trigger pivoted in said notch, and a handle formed with a socket adapted to embrace said bar and also formed with a shoulder adapted to engage said trigger at times and also formed with a lug adapted to limit movement of the trigger in one direction, said trigger being pivoted in decentered relation whereby it is impelled to move to looking engagement with said shoulder by force of gravity.

4. In a lock for locomotive shaker bars, the combination of a shaker bar formed with a notch, a trigger pivoted in said notch, and a handle formed with a socket having a notch which handle is adapted to engage said trigger and move the same rotatably through the notch in the socket, said handle also being adapted to be engaged and retained by said trigger, said trigger being pivoted in decentered relation whereby it is impelled to move to locking engagement with said shoulder by force of gravity and also being adapted to be engaged by said handle and oscillated against gravity, swinging through the notch in said handle toassume its locking relation.

Signed at Des Moines in the county of Polk and State of Iowa, this 20th day of September, 1920.

ROBERT C. HYDE. 

